linux-kernel - Re: [RFC/RFT][PATCH v4 1/2] cpufreq: New governor using utilization data from the scheduler

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Date:	Wed, 2 Mar 2016 19:35:36 -0800
From:	Steve Muckle <steve.muckle@...aro.org>
To:	"Rafael J. Wysocki" <rafael@...nel.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Juri Lelli <juri.lelli@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [RFC/RFT][PATCH v4 1/2] cpufreq: New governor using utilization
 data from the scheduler

On 03/02/2016 07:20 PM, Steve Muckle wrote:
> Why does the frequency value not help? It is true there may be issues of
> a workload being memory bound and not responding quite linearly to
> increasing frequency, but that would pose a problem for the current
> algorithm also. Surely it's better to attempt a consistent policy which
> doesn't vary based on a platform's fmin value?

FWIW I'm not trying to hold up this series - rather just discuss
possibilities and differences with the now deprecated solution that may
be able to be integrated here sometime in the near future.